Farm Animal Welfare

Cattle Johne's Disease Welfare Control

Johne's disease causes chronic wasting and death in cattle. Control programs that reduce prevalence protect herd welfare over time.

Key Facts

Mycobacterium avium subsp. paratuberculosis infects calves in the first weeks of life
Clinical signs appear 2-10 years after infection
Profuse diarrhoea, bottle jaw, and progressive weight loss characterize clinical disease
No effective treatment exists - humane culling is required for clinical cases
Test-and-cull programs reduce herd prevalence over years of consistent implementation

Welfare Considerations

Cattle with clinical Johne's disease experience prolonged suffering - progressive weight loss, diarrhoea, and weakness over months before death or culling. Because infection occurs in calves but disease manifests years later, control requires long-term commitment to testing and management. Early culling of clinical cases prevents the accumulation of extended suffering.

What You Can Do

Implement systematic Johne's testing in cattle herds
Protect young calves from contamination by colostrum and manure from positive cows
Cull clinical cases promptly to prevent prolonged suffering
Work with your vet on a long-term Johne's control program